I’ve never had an issue with TSA. While Amtrak police have been professional, I would rather go through standard tsa screening then be singled out because I’m a male traveling alone.
I don’t like being questioned on why I’m traveling in my own country.
There is an airline with a Promo script "You are free to move about the country" - - -
Amtrak corollary as long as you or the train stays on the tracks !
I am not so worried about travel in on on public transport as I am about the recent wave of car jackings in my city Murderopolis !